package com.itheima.canal.listener;

import com.alibaba.otter.canal.protocol.CanalEntry;
import com.itheima.canal.config.RabbitMQConfig;
import com.xpand.starter.canal.annotation.CanalEventListener;
import com.xpand.starter.canal.annotation.ListenPoint;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;

import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

@CanalEventListener
public class BusinessListener {

    @Autowired
    private RabbitTemplate rabbitTemplate;

    @ListenPoint(schema = "changgou_business", table = {"tb_ad"})
    public void adUpdate(CanalEntry.EventType eventType, CanalEntry.RowData rowData) {

        System.err.println("广告数据发生变化");
        rowData.getBeforeColumnsList().forEach((c) -> System.out.println("更改前数据: " + c.getName() + " :: " + c.getValue()));
        rowData.getAfterColumnsList().forEach((c) -> System.out.println("更改后数据: " + c.getName() + " :: " + c.getValue()));

        for (CanalEntry.Column column : rowData.getAfterColumnsList()) {
            if ("position".equals(column.getName())) {
                System.out.println("发送最新的数据到MQ:" + column.getValue());

                //发送消息
                rabbitTemplate.convertAndSend("", RabbitMQConfig.AD_UPDATE_QUEUE, column.getValue());
            }
        }


    }
}
